diff -Naur goonies-1.4.1528.orig/src/auxiliar.cpp goonies-1.4.1528/src/auxiliar.cpp
--- goonies-1.4.1528.orig/src/auxiliar.cpp	2009-03-12 09:43:32.000000000 +0100
+++ goonies-1.4.1528/src/auxiliar.cpp	2017-06-23 10:24:12.765749591 +0200
@@ -94,7 +94,7 @@
 
     if (tmp == 0 ||
             mask == 0)
-        return false;
+        return 0;
 
     res = SDL_DisplayFormatAlpha(tmp);
 
